Improvement in automatic fan



i, GEORGE H. BRIGGS, OF MONTGOMERY, ALABAl\dA.v

e Lame Palmi N 105,772, dated July 26, 1870.

IMPROVEMENT rIN AUTOMATIC PAN.

The Schedule referred toin these Lettera Patent and making part of thesame.

To allwhom it may concern Be it. known that I, `Geenen H. BRIGGs, ofMont.-

gomery, in the county of Montgmery and State of Alabama, have invented anew anduseful Improved AutomaticFam and I do hereby declare that thefollowing is a full, clear, and exact description thereof, sucient toenable those skilled in the art to which ,my invention appertains tomakeand use `the same, reference being had to the accompanyingdrawing makingpart of this specification,V4 in which- Figure 1 is a plan or top vew ofthe mechanism lfor operating the fan.

Figure 2 is a side view ot'` the same.

" 'Figure 3 shows the-,mechanism'incloscd'ina box or casinghfcrming aStand or platform for 4the fan.

Figures 4 and 5 are detailed Vviews, hereinafter more particularlyreferred to.j

The nature ot' my invention consists in constructvingan automaticfanwithadjustable telescopic supports for one or more fans or brushes;also, in-imi l artiu a reci )rocatixwrotar motion to the ian-shaft- P. oo a also, `in lthe `peculiar,arrangement ot' an adjustable device forincreasing or diminishing the speed of the fanshaft.

The fan-shaft is formed in two sections, A B, and

, provided with sockets a, or other suitable means for att-aching thefans.

-The upper sect-ion, B, is a telescopic rod, which may be `extended orcontracted at pleasure. .It is attached to the lower section A by anordinary hingejoint, and is held in a verticaliposition, or inclined atany desired angle by means of an adjustable brace.

The brace O consists of a bar hinged to utwo collars. one of which isfastened to the section A, and

the 'other slides 'eely on the section B, and is pro- `vided with aset-screw, by which it may be held at any desired point. z

9 Two-different positions of the sections and brace are shownrespectively in gs. `4 and 5.x The fans D- are' attached i to thel lowersection A,

` and to the upper section B are attached any desired "numberoflpea-fowl' feathers or brushes, or tassels made of any suitablematerial, which will serve as av fly-brush and mosquto-chaser.

Fans, also-in any desired number, may be attached `to the upper sectionB, hinged to bars or rods radiating from the sec tion B, so as to havea-swinging inotion;

The section A is journaled in the frame-work which holds the operatingmechanism.

Attached to it, justabore the upper journal, is a gear-wheel, E, whichreceives motion from another gear-wheel, F.

To the shaft of the gear-wheel F is rigidly attached one end of aslotted bar, G, in the slot of which works a screw-pin, H, project-ingfrom a disk vor plate, I, attached to a shaft, K, on which isa'pinion,yL, through which motion is imparted from theoperatingmechanism, which may consist of an ordinary spring clockwork.

The disk or plate I has a series of holes placed at differentdistaneesfrom the center, and, by inserting the screw-pin -H in the ldifferentholes, diiiercnt de' grecs of velocity are attained by the wheell F, aswell as different length of oscillation of the slotted bar G,

The operatingr mechanism imparts a continuous ro tary niotion'to thedisk or plateI, land the screw-pin H working in the slot, causes the barG to oscillare and impart a reciprocating rotary motion to the wheel F,Iend through the wheel E to the fan-shaft, giving the fans aback-and-forward motion.

When the section B is turned down horizontally, as shown in figs. 1, 2,and 4, it oscillates back and forward, with the section A as its center.

This fan may be placed at one end of a table, and the section -Bexteudedso as to l'each to the other end, the mechanismbeing so adjusted as tonot give too great a sweep to the shaft.

The stand or platform may be provided with a clamp or thumb-screw, orother suitable means for attaching it tothe head-board of a bcdstead,where its efficiency as a mosquito-chaser will be readily appreciated`What I claim as new, and desire to secure by Letters Patent, isf- 1 Inan automatic fan, thecombination of the adjustable telescopic rod A B,which may be extended or contracted and adjusted at'dil'erent angleswith the gearing E'F, slotted bar G, plate I, and'adjustable wrist-pinH, whereby a reciprocating rotary motion is imparted to the fans, whenarranged and operating as ero. lar-. sarees'.

